package com.megan.design.principle.compositionaggregation;

/**
 * @Author: megan
 * @Data: 2018/8/24 上午7:17
 * @Description: db 连接
 */
public abstract class DBCommection {

//    public String getConnection(){
//        return "MySQL数据连接";
//    }

    public abstract String getConnection();
}
